The winner this week will take home 20% of that prize pool: a $4 million check will be deposited into the account of whoever can best tame the always difficult Muirfield Village Golf Club. That is a larger winner's check than what was available at the PGA Championship earlier this month (won by Scottie Scheffler).

Memorial Tournament founder and host Jack Nicklaus is still going strong at age 85. A 'what-to-know' look at the Golden Bear.

Nicklaus is once again the host this week at his annual PGA Tour stop, where he shared details how how his important Tour event came to be.